53 entries under stable topic. ×

19
changeless(adjective, fixed, constant, enduring)
17
endless(adjective, steady, persistent, constant)
15
unending(adjective, steady, persistent, constant)
12
continual(adjective, usual, steady, regular)
9
set(verb, adjective, calm, steady)
8
continuous(adjective, steady, persistent, constant)
8
unvarying(adjective, calm, strong, secure, firm)
7
incessant(adjective, steady, persistent, constant)
6
regular(adjective, usual, steady, routine)
6
uninterrupted(adjective, steady, regular, fixed)
6
unremitting(adjective, steady, persistent, constant)
5
solid(adjective, calm, strong, secure, steady)
4
persisting(adjective, steady, persistent, constant)
4
secure(calm, strong, firm, steady, substantial)
3
equable(adjective, calm, strong, secure, firm)
3
habitual(adjective, usual, steady, regular)
3
immovable(adjective, secure, firm, true, steady)
2
monotonous(adjective, dull, steady, regular)
2
nonstop(adjective, steady, regular, fixed)
2
unbroken(adjective, steady, regular, fixed)
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APASmart Define. (2016). permanent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/permanent/thesaurus/synonyms
ChicagoSmart Define. 2016. "permanent thesaurus" https://smartdefine.org/permanent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, permanent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/permanent/thesaurus/synonyms>.
MLASmart Define. "permanent thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/permanent/thesaurus/synonyms>